Our Capabilities

Valve Applications

  • Safety Relief Valves
  • Diaphragm Valves
  • Gate Valves
  • Globe Valves
  • High Pressure Valves
  • Valve Packing Assemblies
  • Valve Actuator Assemblies


  • Music Wire
  • Hard Drawn
  • Oil Tempered
  • Chrome Vanadium
  • Chrome Silicon
  • 302 Stainless
  • Type 316 Stainless
  • Type 321 Stainless
  • 410, 420 Stainless
  • 17-7 PH Stainless
  • A 286 Super Alloy
  • Inconel® 600
  • Inconel® 625
  • Inconel® 718
  • Inconel® X-750 #1 Temp & Spring Temp
  • Monel 400
  • K-Monel 500
  • Ni-Span C
  • Phos Bronze
  • Beryllium Copper
  • Titanium Bar & Wire
  • Elgiloy®
  • MP35N®
  • Hastelloy® C276
  • Tantalum
  • Rene-41

Compression & Disc SpringsMW Industries has been supplying control valve and actuator springs of all types to the valve industry since 1925. Numerous valve applications include safety relief, diaphragm, gate, globe and high-pressure valves. MW Industries manufactures valve springs to exacting tolerances (+/- 5% on rate), and we can meet the tight one-degree squareness required for critical valves. We have extensive experience working with all types of spring materials for valves, including steel and numerous high corrosion and high temperature alloys. The available wire diameters that can be utilized are .005” through 1.875”. Expert engineering design assistance is available for all types of control valve springs, including the spring styles of compression, extension, torsion, leaf and Belleville. Prototypes, as well as a full range of stock catalog items, are available for fast delivery to meet your requirements. Full certifications are available from first article to 100% serialized test reports. Comprehensive testing is also available for all loads and physical dimensions, as well as SPC analyses on final test reports.

The MW Industries family of companies includes various locations that are experts at supplying springs and components to the valve industry:

Atlantic Spring provides an extensive size range of springs, from .008” wire diameter up to .625” wire diameter in pre-tempered wire. Atlantic Spring can also supply up to 1.50” diameter bar on non-ferrous, special materials.

Mohawk Spring specializes in compression springs with wire diameters from .005” to .500”. Numerous wire materials are available, including carbon steel, alloy steel, copper, and bronze.

Century Spring stocks a complete line of Belleville washer and disc springs used in valve packing assemblies, high pressure valves and valve actuator assemblies. Century Spring is known for stocking the largest and most diverse inventory of springs. All products are available for order either through the Century Spring catalog or our e-commerce site for online orders.

Maryland Precision Spring specializes in Belleville washers and custom disc springs where applications require engineered solutions for special environmental conditions, tight space constraints, special load requirements, or service life expectations. Maryland Precision Spring offers complete design, engineering, and manufacturing support.

Engineered Spring Products specializes in products for the gas and oil field markets. We provide a wide variety of spring sizes for valve applications in numerous material types. Engineered Spring Products also provides high-demand disc washers (Belleville washers or disc springs) for the valve market.

Matthew Warren Spring manufactures hot wound springs (hot coil springs) up to 1.875” in wire diameter. These springs are necessary for the largest and most demanding valve applications.